.pulsing-circle{position:absolute;width:180px;height:180px;background:rgba(0,123,255,.8);border-radius:50%;animation:pulse 2s infinite;left:50%;transform:translate(-50%,-50%);box-shadow:0 0 30px 15px rgba(0,123,255,.4);filter:blur(40px);transition:top .5s ease;pointer-events:none}.top-position{top:35%}.bottom-position{top:200%}@keyframes pulse{0%{transform:translate(-50%,-50%) scale(.95);opacity:1}70%{transform:translate(-50%,-50%) scale(1.1);opacity:.7}to{transform:translate(-50%,-50%) scale(.95);opacity:1}}